initwd Windows tests fixes (#1723)

Signed-off-by: eduzgun <emreduz00@gmail.com>
Signed-off-by: Emre Duzgun <100037959+eduzgun@users.noreply.github.com>

internal/initwd/from_module_test.go

@@ -9,6 +9,7 @@ import (
 	"context"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -281,6 +282,11 @@ func TestDirFromModule_rel_submodules(t *testing.T) {
 	}
 	t.Cleanup(func() {
 		os.Chdir(oldDir)
+		// Trigger garbage collection to ensure that all open file handles are closed.
+		// This prevents TempDir RemoveAll cleanup errors on Windows.
+		if runtime.GOOS == "windows" {
+			runtime.GC()
+		}
 	})
 
 	hooks := &testInstallHooks{}